Reinvestigation of the mechanism of the enamine-mediated dioxygen activation
Résumé
The reaction of cyclohexylidene-2-carbamylcyclohex-1-enylamines with molecular oxygen does not undergo a
[4+2] cycloaddition reactions but leads mainly to a dimer via single electron transfer (SET) from the enamine to
3O2, proton transfer (PT) and consecutive radical C–C coupling, an addition to the formation of hydroperoxide
byproduct.